They encounter allies and adversaries[9][11] while learning that Arkayna has a long-lost fraternal twin sister, who is assumed to be the Astromancer Proxima Starfall.

She becomes the new leader of the Spectral Hand with help from the Astromancers, whom she places under her control as the Spectromancers, and creates the Dark Codex by corrupting the Dragon Disk.

With Tazma's help, the Mysticons enter her mind to find a spell that will free her from the mask's influence and Arkayna realizes that she failed to be there for Proxima when she needed her most.

On the island, the Vexicons prepare for the arrival of the Spectral Hand while Proxima explains its origins, as well as those of Necrafa and Dreadbane, before undoing the spell she cast on the Astromancers.

Nova Terron reveals the existence of magical lances that could enhance the power of the Mysticons' bracers and allow them to destroy the Spectral Hand forever, but that the plans to create them are in Queen Goodfey's necklace.

When Dreadbane refuses to reverse the curse on Darius and Queen Goodfey, the Mysticons head to the palace to retrieve their petrified forms, but are captured by Mallory.

After receiving the plans, the Mysticons create the Lance of Justice in the dwarves' forge room and Queen Goodfey accompanies them to confront the Spectral Hand, which emerges from the ancient column of ruins that had imprisoned it.

Upon reaching the Valley of Shooting Stars, they are caught by the Vexicons and Eartha has a change of heart and refuses to destroy the dragon eggs.

Emerald and Eartha live together in Ruddix Hollow, King Darius and Queen Goodfey resume their royal duties and have the Vexicons imprisoned, Nova Terron resigns as master of the Astromancer Academy to be with his girlfriend Geraldine and gives the position to Proxima as compensation for inadvertently helping to ruin her life, presenting her with the Codex and the Dragon Disk.

[46] The show is female-centered, as opposed to "many male-centered series" for younger viewers while focusing on magic, superpowers, and the classic good vs. evil dichotomy.

Due to the focus on magic and fantasy, the series has been compared to the upcoming Crunchyroll Original, High Guardian Spice by some critics.

Jara also said there is a "beautiful love story" between Zarya and Kitty in the show, referring to the interactions between the two characters in episode 37 ("The Princess and the Pirate"), stated the importance of showing "love between LGBTQ characters on TV," and said that the kiss was cut from the episode because of "systemic homophobia" in the kids' television industry, crediting Rebecca Sugar for making strides.

"[57] In June 2021, Abbey White of Insider reported that when the show's studio changed the series to center on four teenage girls, Jara brought in more women and queer writers to the show's writing team, who were "responsible for building out an arc between lesbian characters Zarya Moonwolf and Kitty Boon," which fans gave the shipping name of "MoonBoon."

In the article, Nelvana confirmed that the decision to remove the kiss was made during production of the show's Season Two, and said that they were committed to having "creative storytelling with diversity and inclusion at the forefront" when it comes to BIPOC and LGBTQ representation.

[59] The principal voice cast includes Alyson Court as Arkayna Goodfey,[d][60] Evany Rosen as Emerald Goldenbraid,[61] Nicki Burke as Zarya Moonwolf,[62][63] and Ana Sani as Piper Willowbrook.

[48][64][65] In terms of recurring characters, David Berni was Gawayne the Great,[66] Katie Griffin was Kitty Boon,[67][68] Linda Kash was Queen Goodfey and Kymraw,[69] and Dan Lett was Nova Terron.

[73] The same year, Ana Sani was nominated for the "Outstanding Performance – Female Voice" ACTRA Award for her role in the episode "The Edge of Two Morrows.

[85][86] Nelvana's Andrew Kerr explained in 2016 that the show's developers agreed that "at this moment in time the project would be better served if we had female protagonists.

[108] Alongside the text versions, Macmillan also released audiobooks of their original stories narrated by members of the show's voice cast.

[109][110][111] On August 15, 2018, Dark Horse Comics launched an ongoing series of graphic novels by Kate Leth and Megan Levens.

In contrast, The Encyclopedia of Science Fiction contributor Steven Pearce gave a positive review, stating that the three story arcs of the series centers on a different villain, and stated that even though the series is set in a futuristic city, "noir tendencies of urban fantasy are avoided" with cultural influence of Earth still present, even as there are sci-fi elements.